The Research on Quantitative Inspection Technology to Wire Rope Defect Based on Hall Sensor Array
-
摘要: 传统的钢丝绳无损检测装置采用感应线圈作为传感器，但由于线圈传感器的输出与钢丝绳的运动速度相关，使用霍尔传感器可有效地克服钢丝绳运动速度的影响。设计了一种基于霍尔阵列传感器的钢丝绳无损检测系统，系统不仅可实现缺陷在钢丝绳轴向的准确定位，且可实现对不同周向位置的缺陷的检测，提高了钢丝绳缺陷检测的维度，并通过二值化漏磁图像的局部像素和来实现缺陷大小的定量，取得了良好的检测效果。Abstract: The induction coil sensor is traditionally used in the wire rope nondestructive inspection. As the output of coil sensor is related to the velocity of the wire rope, the signal will be compressed or stretched in different velocities. The impact of the velocity can be effectively overcome with Hall sensors. In this paper, a wire rope non-destructive system that is based on Hall sensor array is designed. This system achieves not only the accurate axial positioning of the defect, but also the circumferential distribution of the defect. The dimension for defect detection is improved in more details. Meanwhile, local pixel sum of magnetic flux leakage binary image is utilized to implement the quantitative measurement of defects. The result shows the good performance of the system.
-
Keywords:
- Hall sensor array /
- Magnetic flux leakage imaging /
- Wire rope
-
-
[1] 杨叔子，康宜华.钢丝绳断丝定量检测原理与技术［M］.北京：国防工业出版社,1995:5-10. [2] Weischedel H R. The inspection of wire ropes in service: a critical review［J］. Material Evaluation,1988,46(5):430-437. [3] Edwars C, Palmer S B. The magnetic leakage field of surface-breaking cracks［J］. Journal of Physics D: Applied Physics,1985,19(4):657-673. [4] Sushant M. Dutta, Fathi H. Ghorbel, Roderic K. Stanley. Simulation and analysis of 3-D magnetic flux leakage［J］. IEEE Transactions on Magnetics,2009,45(4):1966-1972 [5] 赵敏, 张东来.钢丝绳典型缺陷的漏磁场有限元仿真［J］.无损检测,2009,31(3):177-180. [6] Christen R, Bergamini A. Automatic flaw detec-tion in NDE signals using a panel of neural networks［J］. NDT&E International,2006,39:547-553. [7] Gu Wei, Chu Jianxin. A transducer made up of fluxgate sensors for testing wire rope defects［J］. IEEE Transaction on Instrumentation and Measurement,2002,51(1):120-124. [8] 康宜华，武新军，杨叔子.磁性无损检测技术中的信号处理技术［J］.无损检测,2000,22(6):255-259. [9] Jomdecha C, Prateepasen A. Design of modi-fied electromagnetic main-flux for steel wire rope inspection［J］. NDT & E Interna-tional,2009,42(1):77-83. [10] August Haller. Wire Cable Testing Using High Resolution Magnetic Induction［J/OL］. e-Journal of Nondestructive Testing,1998,3(2). ［Online］ Available: http://www.ndt.net/article/0298/haller_e/haller_e.htm [11] Tsai D M, Hsieh C Y. Automated surface inspection for directional textures［J］. Image and Vision Computing,1999,18(1):49-62.
计量
- 文章访问数: 9
- HTML全文浏览量: 0
- PDF下载量: 2
下载:
